Essential Elektra

Daredevil (first series) #168
In her first appearance, Elektra attempts to collect a bounty on a witness who Matt Murdock (Daredevil's lawyer alias) needs to testify in court. We learn that Elektra was once the college girlfriend of Matt Murdock (Daredevil) and that her father, a Greek ambassador, was killed in a hostage situation gone wrong.

Daredevil (first series) #169
Elektra visits Daredevil's apartment and learns that he is in a relationship with another woman. The Kingpin appears in Daredevil continuity for the first time and makes a contract with a mysterious group called "The Hand" against Daredevil.

Daredevil (first series) #174
We find out that "The Hand" is a band of ninja assassins specializing in black magic who The Kingpin has hired to kill Daredevil. Elektra rescues Daredevil from The Hand, but due to an errant missile, Daredevil loses his enhanced senses.